[Objective] The aim was to explore the species diversity of flower-visiting Syrphidae in the farmland of Hanzhong area.[Method] Based on the sample collection and the sorting and identification of collected specimens and literature,the species and their seasonal changes of flower-visiting Syrphidae in the agroecosystem of Hanzhong area were systematically analyzed.[Result] 5 015 specimens of Syrphidae were cheaked in this study,and 141 species of 53 genera of 16 families in three subfamilies of flower-visiting species of Syrphidae were identified in farmland of Hanzhong area,in which 65 species were Syrphinae;72 species were Milesiinae;while four species were Microdontinae.The species of Syrphidae in this region were active in April,May,June and July.There were two dominant species in this region,including Episyrphus balteatus and Eristalis tenax.[Conclusion] This study had provided theoretical basis for the studies on the flower-visiting habit and fecundation of insects of Syrphidae in this area.
